Cannot generate widgets
blackshot opened this issue · 5 comments
blackshot commented
Describe the bug
the generator outputs:
[INFO] ------------------------------------------------------------------------
[INFO] Starting Build
[INFO] Updating asset graph...
[INFO] Updating asset graph completed, took 1ms
[INFO] Running build...
[SEVERE] functional_widget:functional_widget on lib/main.dart:
Invalid prototype. The function must be synchronous, top level, and return a Widget
package:testapp/main.dart:13:8
╷
13 │ Widget myApp(){
│ ^^^^^
╵
[INFO] Running build completed, took 121ms
[INFO] Caching finalized dependency graph...
[INFO] Caching finalized dependency graph completed, took 35ms
[SEVERE] Failed after 158ms
it seems that is throwing this error, but i don't see why.
To Reproduce
I don't know, i just wrote the functional widget as the documentation says but the generator doesn't work
Expected behavior
generate main.g.dart
Extra info
main.dart (the only file is a simple counter app)
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
import 'package:functional_widget_annotation/functional_widget_annotation.dart';
part 'main.g.dart';
void main() {
runApp(MyApp());
}
@swidget
Widget myApp(){
return MaterialApp(
title: 'Flutter Demo',
routes: {
'/': (context) => MyHomePage(title: 'Rutas lmL')
},
theme: ThemeData(
primarySwatch: Colors.lightGreen,
),
);
}
@hwidget
Widget myHomePage({String title}){
final countState = useState(0);
void increment() => countState.value++;
void decrement() => countState.value--;
return Scaffold(
appBar: AppBar(
title: Text(title),
),
body: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Text('Presionaste ${countState.value} veces', textAlign: TextAlign.center,),
TextButton.icon(onPressed: increment, label: Text('Incrementar'), icon: Icon(Icons.add)),
TextButton.icon(onPressed: decrement, label: Text('Decrementar'), icon: Icon(Icons.vertical_align_bottom))
],
),
);
}Dart version: Dart SDK version: 2.12.2 (stable) (Wed Mar 17 10:30:20 2021 +0100) on "windows_x64"
Flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 2.0.4, on Microsoft Windows [Version 10.0.21313.1000], locale es-CL)
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
[✓] Chrome - develop for the web
[✓] Android Studio (version 4.1.0)
[✓] IntelliJ IDEA Ultimate Edition (version 2019.3)
[✓] VS Code (version 1.55.1)
[✓] Connected device (3 available)
pubspec
name: testapp
description: A new Flutter project.
# The following line prevents the package from being accidentally published to
# pub.dev using `pub publish`. This is preferred for private packages.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev
# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
version: 1.0.0+1
environment:
sdk: ">=2.7.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
cupertino_icons: ^1.0.2
flutter_hooks: ^0.16.0
functional_widget_annotation: ^0.9.0
dev_dependencies:
flutter_test:
sdk: flutter
functional_widget: ^0.9.0
build_runner: ^1.9.0
# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec
# The following section is specific to Flutter.
flutter:
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true
# To add assets to your application, add an assets section, like this:
# assets:
# - images/a_dot_burr.jpeg
# - images/a_dot_ham.jpeg
# An image asset can refer to one or more resolution-specific "variants", see
# https://flutter.dev/assets-and-images/#resolution-aware.
# For details regarding adding assets from package dependencies, see
# https://flutter.dev/assets-and-images/#from-packages
# To add custom fonts to your application, add a fonts section here,
# in this "flutter" section. Each entry in this list should have a
# "family" key with the font family name, and a "fonts" key with a
# list giving the asset and other descriptors for the font. For
# example:
# fonts:
# - family: Schyler
# fonts:
# - asset: fonts/Schyler-Regular.ttf
# - asset: fonts/Schyler-Italic.ttf
# style: italic
# - family: Trajan Pro
# fonts:
# - asset: fonts/TrajanPro.ttf
# - asset: fonts/TrajanPro_Bold.ttf
# weight: 700
#
# For details regarding fonts from package dependencies,
# see https://flutter.dev/custom-fonts/#from-packagesblackshot commented
I just solved it changing flutter create's default sdk environment in pubspec.yaml from
environment:
sdk: ">=2.7.0 <3.0.0"to
environment:
sdk: ^2.12.0As shown in the example from 'functional_widget package.
This error is not documented and i don't understand why happened so i cannot document it. it would be nice if @rrousselGit could do it.
rrousselGit commented
Sorry for the late reply
Honestly I don't quite know how you ended up with this error. It may have been caused by a bugged version of a transitive dependency
hxse commented
I tested the same code, there is no way to run.
blackshot commented
I tested the same code, there is no way to run.
thats weird because i ran it just changing the sdk version.
rrousselGit commented
I'll close this since it was resolved